Changelog

[1.0.0] — 2026-04-21

Added

• Initial release of PyCupFM
• All 5 estimators: LSDV, Bai FM, CupFM, CupFM-bar, CupBC
• Bai & Ng (2002) information criterion for automatic factor selection
• Three kernel functions: Bartlett, Parzen, Quadratic Spectral
• Automatic bandwidth selection (Newey-West, Andrews)
• 9 publication-quality plot types
• Export to LaTeX, Excel, CSV, HTML
• Built-in Grunfeld dataset (N=10 firms, T=20 years)
• Monte Carlo simulation framework (BKN 2009 DGP)
• Comprehensive Jupyter notebook tutorial
• Full API documentation
• Compatible with Stata cupfm v1.0.4 (SSC)